The mayor of Helsinki says the city has commissioned the Solomon R Guggenheim Foundation to explore the possibility of building a museum in the Finnish capital.

Jussi Pajunen says the feasibility study will cost $2.5m (£1.6m) and take a year to complete.

Richard Armstrong, the director of the New York-based Guggenheim foundation and museum, said it is "a very compelling opportunity to continue our investigations into the possibilities of global interchange".